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CN-224230133-U - Air supply device and warm air blower

CN224230133UCN 224230133 UCN224230133 UCN 224230133UCN-224230133-U

Abstract

The utility model relates to an air supply device and a warm air blower, wherein the air supply device comprises a first air channel, a second air channel, a grating plate and a first air channel, wherein the cross-sectional area of the first air channel gradually increases from an air inlet side to an air supply side, the second air channel surrounds the outer side of the first air channel, the cross-sectional area of the second air channel gradually increases from the air inlet side to the air supply side, a gap exists between the side wall of the second air channel and the side wall of the first air channel, and the grating plate is arranged in the gap and is connected with the outer side wall of the first air channel and the inner side wall of the second air channel. The air supply device can conduct differential guiding on the air flow in the center and the peripheral of the air supply, and the air supply area is increased.

Inventors

  • LI PEIYI
  • WAN XINGYUN

Assignees

  • 小熊电器股份有限公司
  • 佛山市小熊健康电器有限公司

Dates

Publication Date
20260512
Application Date
20250506

Claims (10)

  1. 1. An air blowing device, comprising: The first air duct is arranged from the air inlet side to the air supply side, and the cross-sectional area of the first air duct is gradually increased; The second air duct surrounds the outer side of the first air duct, and the cross-sectional area of the second air duct gradually increases from the air inlet side to the air supply side; And the grating plate is arranged in the gap and is connected with the outer side wall of the first air channel and the inner side wall of the second air channel.
  2. 2. The air supply device according to claim 1, wherein a center point of the first air duct and a center point of the second air duct coincide, and a width of the gap at the opposite position is symmetrical with respect to the center point of the first air duct.
  3. 3. The air supply device according to claim 1, wherein a plane of the grating plate is parallel to an air supply direction of the second air duct.
  4. 4. The air supply device according to claim 1, wherein the grating plates are provided in plural, and the mounting positions and the number of the grating plates located at opposite positions are symmetrical with respect to the center point of the first air duct.
  5. 5. The air supply device according to claim 1, wherein the side walls of the first air duct and the second air duct are each surrounded by a plurality of air duct walls, and the air duct walls are gradually inclined toward a direction away from a center point of the first air duct from an air intake side to an air supply side.
  6. 6. The air supply device of claim 5, wherein the duct walls of the second duct are sloped differently than the duct walls of the first duct.
  7. 7. The air supply device according to claim 1, wherein the first air duct and the second air duct are both formed on an air duct plate, and the air duct plate is an arc plate protruding toward the air supply direction.
  8. 8. A fan heater provided with the air supply device as claimed in any one of claims 1 to 7, wherein the fan heater further comprises a fan and a heating body, and the heating body is arranged between the air supply side of the fan and the air inlet side of the air supply device; The air inlet side of the first air channel is opposite to the heating element, and the air inlet side of the second air channel is offset relative to the heating element.
  9. 9. The fan heater according to claim 8, wherein the fan is fixed to the body assembly through a fan bracket, the heating element is fixed to the front of the fan through a heating element bracket, the air supply device covers the installation position of the heating element and is fixed to the body assembly, and a front net is fixed to the front of the air supply device.
  10. 10. The warm-air drier according to claim 8, wherein the warm-air drier is a vertical warm-air drier, the air inlet of the first air duct is a longitudinal rectangle, two fans are longitudinally fixed in the machine body assembly, and the air supply ranges of the two fans are opposite to the air inlet of the first air duct.

Description

Air supply device and warm air blower Technical Field The utility model relates to air supply equipment, in particular to an air supply device and a warm air blower. Background The air outlet area of the air supply device of many air supply devices is smaller and basically the same as the air blowing area of the fan, so that large-scale air supply cannot be realized. For example, for the warm air blower, the air outlet area of the warm air blower is basically the same as the front projection area of the heating element, and the heating element area is generally not very large in consideration of the cost of the heating element, so that the air outlet area and the heating range are not very large, and the requirements of multiple people for heating in a large range are difficult to meet. It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art. Disclosure of utility model Aiming at the problem of small air outlet area of an air supply device in the prior art, the utility model discloses the air supply device and a warm air blower. The technical scheme adopted by the embodiment of the utility model is as follows: A blowing device comprises a first air channel, a second air channel, a grating plate and a blowing device, wherein the cross-sectional area of the first air channel gradually increases from an air inlet side to a blowing side, the second air channel surrounds the outer side of the first air channel, the cross-sectional area of the second air channel gradually increases from the air inlet side to the blowing side, a gap exists between the side wall of the second air channel and the side wall of the first air channel, and the grating plate is arranged in the gap and connected with the outer side wall of the first air channel and the inner side wall of the second air channel. The further technical scheme is that the center point of the first air channel is coincident with the center point of the second air channel, and the width of the gap at the opposite position is symmetrical relative to the center point of the first air channel. The plane of the grating plate is parallel to the air supply direction of the second air duct. The grid plates are arranged in a plurality of mode, and the installation positions and the number of the grid plates positioned at the opposite positions are symmetrical relative to the center point of the first air duct. The side walls of the first air channel and the second air channel are respectively surrounded by a plurality of air channel walls, and the air channel walls gradually incline towards the direction far away from the central point of the first air channel from the air inlet side to the air supply side. The air duct wall of the second air duct is different from the air duct wall of the first air duct in inclination degree. The further technical proposal is that the first air duct and the second air duct are both arranged on an air duct plate, the air duct plate is an arc plate protruding towards the air supply direction. A fan heater provided with the air supply device according to any one of the above, further comprises a fan and a heating body, wherein the heating body is arranged between the air supply side of the fan and the air inlet side of the air supply device, the air inlet side of the first air channel is opposite to the heating body, and the air inlet side of the second air channel has an offset distance relative to the heating body. The fan is fixed to a machine body assembly through a fan support, the heating body is fixed to the front of the fan through a heating body support, the air supply device covers the installation position of the heating body and is fixed to the machine body assembly, and a front net is further fixed to the front of the air supply device. The fan heater comprises a machine body assembly, a fan and a fan air inlet, wherein the fan is a vertical fan heater, an air inlet of a first air channel is in a longitudinal rectangle, two fans are longitudinally fixed in the machine body assembly, and the air supply range of the two fans is opposite to the air inlet of the first air channel. The embodiment of the utility model has the following beneficial effects: The air supply device is provided with the first air duct and the second air duct, so that the air flow in the center and the air flow in the periphery of the air supply device can be guided in a differentiated mode. The first air duct can enable flowing air to be blown out from the front face of the air supply device, and the second air duct can enable air to be blown to a larger area range. When the air supply device is arranged on the warm air blower, the air inlet of the first air channel is opposite to the heating body. The air inlet of the second air channel i